US PATENT SUBCLASS 141 / 42
.~.~.~.~ Float controlled vacuum line cut-off

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


141 /   HD   FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING MEANS

37  DF  DIVERSE FLUID CONTAINING PRESSURE FILLING SYSTEMS INVOLVING RECEIVER GAS CONTENT MODIFICATION {11}
39  DF  .~ Filling means controlled by gas condition in receiver {1}
40  DF  .~.~ Control by level in filled receiver {1}
41  DF  .~.~.~ Air pump external to flow line {1}
42.~.~.~.~ Float controlled vacuum line cut-off {1}
43  DF  .~.~.~.~.~> Vacuum line vented to atmosphere

DEFINITION

Classification: 141/42

(under subclass 41) Apparatus in which the system is additionally provided with a negative pressure line and a buoyant means which at some predetermined level of material in the receiver, effectively disconnects the said negative pressure line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

303, for multiple passage filling means for diverse materials or flows having a float operated vent cut-off.